chemical questions

[somethinspecial]

okay this isnt exactly for homework, but i do need help, im trying to reorganize some chemical compositions. i know most of this is hypothetical and may not be strictly possible, but... i cant give it away just yet (the reason). but here are the chemicals i need broken down: HC4,C2H6, HC2H, C3H8, HCN, CH3CN, (CN)2, C2H4. as you notice, there are alot of methyl kind of combinations here, first of all, are any of these able to break down, and what could be made from them? and if you add the others, CO, CO2, H, N, Ar, the last 3 are on their own, but there is some O and thats more or less what i'm trying to generate here, and break down the methane concentration. no, this is not an actual experiment im conducting, this is hypothetical, like i already said, so dont worry no ones trying this at home. please, i would appreciate some input on this as im stumped. this is a bit complex for me alone. thank you, someone anyone....